import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import welcome from '../components/welcome.vue'
import Users from '../components/user/Users.vue'
import Rights from '../components/power/Rights.vue'
import Roles from '../components/power/Roles.vue'
import Cate from '../components/goods/Cate.vue'
import Params from '../components/goods/Params.vue'
import List from '../components/goods/List.vue'
import add from '../components/goods/add.vue'
import Order from '../components/order/Order.vue'
import Report from '../components/report/Report.vue'

Vue.use(VueRouter)

const routes = [{
    path: '/',
    redirect: '/login'
}, {
    path: '/login',
    component: Login
}, {
    path: '/home',
    component: Home,
    redirect: '/welcome',
    children: [{
        path: '/welcome',
        component: welcome
    }, {
        path: '/users',
        component: Users
    }, {
        path: '/rights',
        component: Rights
    }, {
        path: '/roles',
        component: Roles
    }, {
        path: '/categories',
        component: Cate,
    }, {
        path: '/params',
        component: Params
    }, {
        path: '/goods',
        component: List
    }, {
        path: '/goods/add',
        component: add
    }, {
        path: '/orders',
        component: Order
    }, {
        path: '/reports',
        component: Report
    }]
}]


const router = new VueRouter({
    routes
})

//挂载路由导航守卫
router.beforeEach((to, from, next) => {
    //to 将要访问的路径
    // from代表从哪个路径跳转而来
    // next是一个函数 表示放行
    // next() 放行   next('login') 强制跳转
    if (to.path === '/login') {
        return next()
    } else {
        const tokenstr = window.sessionStorage.getItem('token')
        if (!tokenstr) {
            return next('/login')
        } else {
            next()
        }
    }
})

export default router